如何使用 Windows 命令行查找文件是否包含给定字符串
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How to find if a file contains a given string using Windows command line
提问by Jai
I am trying to create a batch (.bat) file for windows XP to do the following:
我正在尝试为 Windows XP 创建一个批处理 (.bat) 文件以执行以下操作：
If (file.txt contains the string 'searchString') then (ECHO found it!)
ELSE(ECHO not found)
So far, I have found a way to search for strings inside a file using the FINDcommand which returns the line in the file where it finds the string, but am unable to do a conditional check on it.
到目前为止，我已经找到了一种使用FIND命令在文件中搜索字符串的方法，该命令返回文件中找到字符串的行，但无法对其进行条件检查。
For example, this doesn't work.
例如，这不起作用。
IF FIND "searchString" file.txt ECHO found it!
Nor does this:
这也没有：
IF FIND "searchString" file.txt=='' ECHO not found
Any Ideas on how this can be done?
关于如何做到这一点的任何想法？
回答by Mike Q
From other post:
来自其他帖子：
find /c "string" file
if %errorlevel% equ 1 goto notfound
echo found
goto done
:notfound
echo notfound
goto done
:done
Or something like: if not found write to file.
或类似：如果未找到写入文件。
find /c "%%P" file.txt || ( echo %%P >> newfile.txt )
Or something like: if found write to file.
或类似：如果找到写入文件。
find /c "%%P" file.txt && ( echo %%P >> newfile.txt )
Or something like:
或类似的东西：
find /c "%%P" file.txt && ( echo found ) || ( echo not found )
回答by Pedro Francisco Pereira
I've used a DOScommand line to do this. Two lines, actually. The first one to make the "current directory" the folder where the file is - or the root folder of a group of folders where the file can be. The second line does the search.
我使用DOS命令行来执行此操作。实际上是两行。第一个使“当前目录”成为文件所在的文件夹 - 或文件所在的一组文件夹的根文件夹。第二行进行搜索。
CD C:\TheFolder
C:\TheFolder>FINDSTR /L /S /I /N /C:"TheString" *.PRG
You can find details about the parameters at this link.
您可以在此链接中找到有关参数的详细信息。
Hope it helps!
希望能帮助到你！
